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Registros recuperados: 35 | |
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Wiebe, Keith D.. |
Land quality and land degradation affect agricultural productivity, but quantifying these relationships has been difficult. Data are limited, and impacts are sensitive to the choices that farmers make. Summarizing new research by economists, soil scientists, and geographers, this report explores the extent to which land quality and land degradation affect agricultural productivity, how farmers' responses to land degradation are influenced by economic, environmental, and institutional factors, and whether land degradation poses a threat to productivity growth and food security. Results suggest that land degradation does not threaten food security at the global scale, but does pose problems in areas where soils are fragile, property rights are insecure, and... |
Tipo: Report |
Palavras-chave: Land quality; Land degradation; Soil erosion; Agricultural productivity; Food security; Food Security and Poverty; Land Economics/Use; Productivity Analysis. |
Ano: 2003 |
URL: http://purl.umn.edu/34073 |
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Ahearn, Mary Clare; Yee, Jet; Bottum, John S.. |
In 1914, the Cooperative Extension Service was established to disseminate information about agriculture and home economics from land-grant universities to the U.S. public. At that time, about 30 percent of U.S. workers were in agriculture-related occupations; by the late 1990s, that share had declined to about 1 percent. Today, the Extension System ("Extension") is largely publicly funded and links the educational and research arms of the U.S. Department of Agriculture, land-grant universities, and related institutions. The system has changed along with its audience. The number of full-time-equivalent Extension personnel dropped by 12 percent from 1977 to 1997, with the largest declines found in community resource development and 4-H youth programs, two of... |
Tipo: Report |
Palavras-chave: Cooperative Extension Service; Extension; Full-time-equivalent; FTE; Agricultural productivity; Smith-Lever Act of 1914; Research and development; Land-grant universities; Teaching/Communication/Extension/Profession. |
Ano: 2003 |
URL: http://purl.umn.edu/33787 |
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Cuerva Narro, Maria Carmen. |
The aim of this study is to analyse the evolution of the European regional agricultural productivity in terms of convergence. The initial hypothesis is that, in spite of the integration process, the agricultural productivity does not converge to the same stationary level. Additionally, we try to identify the decisive factors affecting such productivity growth. Productivity related information comes from Cambridge Econometrics database for a set of 125 EU-15 regions in the period 1985-2004. The methodology used consists in traditional beta convergence regressions. The difficulties with cross-sectional estimations require the use of panel data techniques for a better estimation of the speed of convergence. The main results show that convergence occurs to... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Agricultural productivity; Beta convergence; Panel data; Common Agricultural Policy; Agricultural and Food Policy. |
Ano: 2009 |
URL: http://purl.umn.edu/58002 |
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Ndjeunga, Jupiter; Bantilan, Ma Cynthia S.. |
During the last 3 decades, donors and governments have invested in the development and dissemination of new technologies in the semi-arid tropics of West Africa. Though a wide range of improved technologies has been developed, adoption remains low without a significant impact on crop productivity, rural income and poverty. Agricultural transformation as occurred in East Asia has not yet occurred in the semi-arid tropics of West Africa. This paper uses data from a regional survey of rural households in 3 countries in West Africa (Burkina Faso, Mali, and Niger) to identify the determinants of uptake of improved technologies. Limited productivity gain is found to be a major constraint to the uptake of technologies. In addition, poorly functioning... |
Tipo: Journal Article |
Palavras-chave: Institutions; Technology; Markets; Road infrastructure; Information; Agricultural productivity; International Development. |
Ano: 2005 |
URL: http://purl.umn.edu/110146 |
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Pender, John L.; Nkonya, Ephraim M.; Jagger, Pamela; Sserunkuuma, Dick; Ssali, Henry. |
This paper estimates a structural econometric model of household decisions regarding income strategies, participation in programs and organizations, crop choices, land management, and labor use, and their implications for agricultural production and land degradation; based upon a survey of over 450 households and their farm plots in Uganda. The results generally support the Boserupian model of population-induced agricultural intensification, but do not support the "more people-less erosion" hypothesis, with population pressure found to contribute to erosion in the densely populated highlands. Agricultural technical assistance programs have location-specific impacts on agricultural production and land degradation, contributing to higher value of crop... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Agricultural productivity; Land degradation; Agricultural development strategies; Uganda; Farm size-productivity; Land Economics/Use; Productivity Analysis. |
Ano: 2003 |
URL: http://purl.umn.edu/25816 |
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Eze, Christopher C.; Konkwo, S.O.; Orebiyi, J.S.; Kadiri, F.A.. |
This study examined land tenure systems, farm sizes, agricultural productivity and innovation in Imo State, Nigeria. Specifically the study examined the socio-economic characteristics of farmers, estimated the farm size of the farmers, identified reasons for not practicing mechanized farming, identified different innovations available to the farmers and identified the factors that affected agricultural productivity . Five communities were chosen randomly and from each of these communities, twenty farmers were randomly chosen. Data were collected, collated and analyzed using relevant techniques such as means, percentages, frequency distribution and multiple regression analysis. The results showed that 85% of the respondents practiced individual land tenure... |
Tipo: Conference Paper or Presentation |
Palavras-chave: Land Tenure system; Farm size; Agricultural productivity; Innovation; Productivity Analysis. |
Ano: 2011 |
URL: http://purl.umn.edu/108934 |
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Registros recuperados: 35 | |
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